The Lincoln Electric Lincoln Power Wave S350 Advanced Process Multi-Process Welder is a high-performance advanced-process welding power source engineered for demanding industrial, fabrication, and automated welding applications. Supporting MIG (GMAW), Pulse MIG (GMAW-P), Flux-Cored (FCAW), Stick (SMAW), and TIG (GTAW), this machine leverages Lincoln Electric's Waveform Control Technology® to deliver unmatched arc consistency, repeatability, and process flexibility on critical weldments.
With up to 350 amps of advanced waveform output, the Power Wave S350 supports Lincoln Electric's full library of Waveform Control Technology® programs, enabling processes from standard MIG and flux-cored to Pulse, STT® surface-tension transfer, and Rapid Arc® for high-speed applications. The U2823-3 factory demo unit is fully inspected and performance-certified by Lincoln Electric, available at a significant discount from new-unit pricing.
- K2823-3 – Power Wave S350 Advanced Process Welder
- U2823-3 – Power Wave S350 Advanced Process Factory Demo Welder
- Advanced waveform control enables precise arc shaping for each welding process and material type
- Multi-process capability: GMAW, GMAW-P, FCAW, SMAW, and GTAW from a single machine
- Up to 350 amps of output with broad duty cycle for production and semi-automated welding
- Ethernet connectivity for remote monitoring, weld data logging, and Lincoln Electric CheckPoint® integration
- Compatible with Lincoln Electric PowerFeed wire feeders and automated welding systems
- Robust industrial enclosure rated for demanding shop and production environments
- Factory demo unit inspected and certified to identical performance standards as new equipment
- Structural steel and heavy plate fabrication with Pulse MIG or FCAW
- Pipe root-pass welding using STT® surface-tension transfer process
- Pressure vessel and code-quality weld applications requiring arc data monitoring
- Automated and semi-automated welding cells integrated with Lincoln PowerFeed systems
- Shipbuilding, offshore, and heavy industrial manufacturing
The Lincoln Electric Lincoln Power Wave S350 Advanced Process Multi-Process Welder represents the pinnacle of industrial welding power source technology, combining advanced waveform control, multi-process flexibility, and robust connectivity into a production-ready platform. Whether you select the new unit for complete warranty coverage or the factory-certified demo model for exceptional value, both configurations deliver the arc performance and process reliability that code-quality fabricators and industrial manufacturers demand.
The Power Wave S350 Advanced Process Multi-Process Welder is a multi-process industrial power source supporting MIG (GMAW), flux-core (FCAW), Stick (SMAW), DC TIG (GTAW), and advanced pulsed MIG processes. The Power Wave and Flextec series are designed for both manual and automated welding applications. Refer to the spec sheet for the full process list for your specific model.
Input power requirements vary by model. Smaller multi-process units may accept single-phase 208/230V or multi-voltage input. Industrial Power Wave and Flextec models typically require three-phase 208–575V input. Check the spec sheet and machine nameplate for exact input power specifications before installation.
Yes — the Lincoln Electric Power Wave and Flextec series are designed for both manual and automated welding applications. They feature ArcLink® digital communication for integration with Lincoln Electric wire feeders, robots, and automated systems. Contact WeldingMart or Lincoln Electric for automation integration assistance.
Lincoln Electric multi-process power sources in this class are compatible with Lincoln's industrial wire feeder family via ArcLink digital connection. Compatible feeders include the LF-72, LF-74, MAXsa, and other Lincoln wire feeders. Refer to the owner's manual for a complete compatibility list.
Output range and duty cycle are listed in the spec sheet. Industrial Lincoln Electric power sources in this class are typically rated for 100% duty cycle at maximum output, making them suitable for continuous production welding environments.
Yes — this is a factory demo or low-hour unit sourced directly from Lincoln Electric. Units are mechanically tested before sale and may show light cosmetic wear. The warranty on this unit is the same as on a new machine. Lincoln’s Industrial Limited Warranty (form IMWS1, Apr-2026) lists a 5-year warranty period for “Power Wave® machines”, and Lincoln states: “Lincoln will assume both the parts and labor expense of correcting defects during the warranty period.” Source: Lincoln Electric Industrial Limited Warranty (form IMWS1, Apr-2026).